Improvement in dies for forming hinged bridle-bits



2Sheets--Sheet1, E. D. BLAPP &. F. VAN PATTEN.

Dies for Forming Hinged Bridle-Bits. N ]5] 755 Patentedfune 9,1874.

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' 28h 1--Sh i2. E. o. GLAPP & F; VAN PATTEN Dies for FormingHing-ed-Bridle-Bits. N0.l5l,755, PatentedJun'e9,1874. v

UNITED STATES PATENT OrFIcE.

EMEROUS D. CLAPP AND FREDERICK VAN PATTEN, OF AUBURN, N. Y.

IMPROVEMENT IN DIES FOR FORMING HINGED BRlDLE-BITS.

Specification forming part of Letters Patent No. 151,755 dated June 9,1874; application filed November 8, 1873.

To all whom it may concern:

Be it known that we, EMEROUS D. GLAPP and FREDERICK VAN PATTEN, ofAuburn, in the'county of Cayuga and State of New York, have invented anew and Improved Die for Making Mouth-Pieces of Bridle-Bits; and we dohereby declare that the following is a full, clear, and exactdescription thereof, reference being had to the accompanying drawings,making part of this specification, in which Figure 1 is a top view ofthe lower half of the die as constructed for making one-half of ajointedmouth-piece. Fig. 2 is an inverted view of the-upper half of said die.Fig. 3 is a section of the upper and lower halves of the die, with oneof the halves of the mouth-piece between them. Fig. at is a section ofone-half of the mouth-piece as it comes from the die. Fig. 5 shows thetwo halves, in plan, as they come from the die. Fig. 6 is a perspectiveview of the two halves of a mouth-piece as finished and united together.

' My invention consists in a die for making blanks for jointedmouth-pieces of bridle-bits, said die producing the blanks with heads,which have countersunk sockets in them on opposite sides, the bottom ofsaid sockets being simply a thin web of metal, which can be readilypunched out, and thus the bridlering holes and the linking-eyes formedwithout drilling or boring the same, and the advantage of having nearlyall the metal which would be drilled or punched out to form the eyes orholes forced into the heads, and a more solid and strong head produced,is secured.

A is a half-round groove formed in the lower die-block B. At each end ofthis groove an enlarged circular cavity, 13, is formed, the groove andcavity intersecting one another, as shown. C G are raised circularprojections, of slightly conical form, extending up from the base of thecircular cavities. Each of these projections is in the center of therespective cavities. The space around each of these projections is equalto one-half of the required thickness of the heads and linkingeyes ofthe halves of the jointed mouth-piece of the bit. The grooveis equal toone-half of the required thickness and width of the month-piece. Thecavities which form the linking ends of the mouth-piece are smaller thanthose-which form the ring-heads. A similar groove, A, cavity B andprojections O O are formed in the upper half D of the die-block. F F arebreak-down depressions in the die-blocks. These depressions run into thering-head cavities, but they are much shallower than said cavities. Theuse of these is to break down the metal for the smaller or linking headof the halves which form the mouth-piece. This saves waste of stock, andalso equalizes the resistance at the two ends of the die.

To make a blank with this die, take a metal rod of proper size, andwhich is broader than it is thick, and place it, while hot, upon thelower die-block, and bring down. the upper die upon it until the desiredform is secured. This done, the iron is, if still hot enough, passedalong until the first blank produced is cleared from the die, or theportion of the bar which was broken down by the part F F comes over thecavity which forms the linkhead of the bit. Then the upper die is againbrought down upon the bar, and so on until the bar requires a new heatat the forge. The blanks produced will have a thin web, cybetween thesockets Z) I), which can be punched out readily. After this web ispunched out, the linking end of one of the halves of the jointed bit isturned around at right angles to the eye on the other end; and, said eyehav-- ing been split and opened, the parts are linked upon one anotherand the split eye closed, as shown in the perspective view of thedrawings.

\V hat we claim as new, and desire to secure by Letters Patent, is

The die, substantially as herein described and shown, for making blanksfor monthpieccs of bits, the blanks made by the die having a socketedring-head and linking-head,-

and said heads having the sockets on Opposite sides, and separated by athin web, which can be punched out in the finishing operation, as setforth. I

EMERO'US D. OLAPP- FREDERICK VAN PATTEN.

Witnesses:

O. G. PHELPS, Hermon T. 000K.

